JRC JMA-5312-6 Instruction Manual page 392

Magnetron Replacement Procedure for Scanner Unit NKE-1130
(JMA-5332-12)
(1) Before starting part replacement work, turn off the
safety switch of the scanner unit.
The safety switch is located on the rear (stern) side.
Remove the cover and turn off (to the lower side) the
safety switch.
(2) Loosen the hexagonal bolts and remove the cover on
the left (port) side
(3) Check that there is no remaining electric charge
in the modulation high-voltage circuit board.
Remove the two screws (M4) holding the
magnetron cables (both yellow and green).
Bow side
Turn off the safety
switch.
Magnetron
Remove the
green cable.
Remove the
yellow cable.
8-15
Remove the eight
hexagonal screws.
Remove the
two screws.